What an analyst upgrade is, how stocks have behaved after upgrades in published research, which upgrades actually move prices, and what to check before reading anything into one.
Which stocks do Wall Street’s best‑ranked analysts agree on? See them in Exent Gems →
An upgrade on its own is not a strong reason, according to the research. By the time most investors read the headline, much of the price reaction has usually happened, and the follow-through after new buy calls has historically been small. What an upgrade can do is prompt a closer look: who made it, why, and how the stock fits your portfolio.
This page explains how upgrades work and what the evidence says. It is education, not a recommendation on any stock.
An upgrade is when an analyst moves a stock to a more positive rating. Firms use different scales, so the same move can look different. See analyst ratings and overweight rating for the vocabulary.
| Change | Is it an upgrade? | Note |
|---|---|---|
| Hold to Buy | Yes | The most common kind |
| Underweight to Equal-weight | Yes | From negative to neutral |
| Sell to Hold | Yes | Less negative, not positive |
| Buy reiterated, target raised | No | A target change, not a rating change |
| New coverage at Buy | No | An initiation |
Target raises often follow price moves rather than lead them; see price-target changes. New coverage is covered under analyst initiation.
Historically, a jump around the announcement and modest drift after. A 1996 study in the Journal of Finance by Kent Womack looked at new buy and sell recommendations from major US brokerage firms. It found the initial price reaction was large but incomplete. After new buy recommendations, the further drift averaged +2.4% and was short-lived. After new sells, the drift was larger, −9.1%, and lasted six months.
Can investors capture that? A 2001 Journal of Finance study by Barber, Lehavy, McNichols and Trueman found that trading on the most and least favorable consensus ratings earned abnormal gross returns above 4% a year with daily rebalancing, but after trading costs the returns were not reliably above zero. Waiting to react shrank the gains.
A minority. Loh and Stulz, in a 2011 paper in the Review of Financial Studies, found only 12% of recommendation changes were influential, meaning they visibly moved the stock price. Changes were more likely to matter under these conditions:
| More likely to move the stock | A plausible reason (our reading) |
|---|---|
| From a leader, star or previously influential analyst | The market weights their view more |
| Away from the consensus | It adds new information |
| Accompanied by an earnings forecast | It comes with reasoning in numbers |
| On growth or small firms | Less is already known about them |
| On firms with high institutional ownership or high forecast dispersion | More disagreement to resolve |
Because Buy is the default. In the latest 12 months of ratings from the 1,148 analysts in Exent’s ranking, 129,728 were Buy, 48,405 Hold and 5,259 Sell. An upgrade to Buy moves a stock into the rating about 71% of ratings already carry. An upgrade from Sell, or a downgrade, is rarer, which is part of why downgrades are explained separately.
Yes. Analysts differ much more from each other than headlines suggest. In the same 7-year backtest (statistics as of Nov 2, 2026), price-target hit rates ranged from under 30% to over 80% across analysts.
| Group in the backtest | Median price-target hit rate | Median 12-month return after ratings |
|---|---|---|
| 5-star analysts (146) | 59.8% | +20.9% |
| 4 to 4.9-star analysts (988) | 53.9% | +12.3% |
| Average analyst, all 1,148 | 53.1% (average) | +13.7% |
Look up the analyst’s record on the analyst rankings. Past accuracy does not guarantee future accuracy.
Across 958,671 ratings, the average Wall Street analyst’s price target was reached 53.1% of the time: close to a coin flip. The spread between analysts is wide, and 14.9% of the 942 analysts with a measurable record reached 70% or more (Exent data, Nov 2, 2026).
Exent Gems is built on the top 50 of Exent’s ranking. Over the last two years, some of them reached 90% or more of their price targets. Who they are, which stocks they are calling now and how often they have been right is for members.
For a full framework, see how to judge an analyst. Waiting for several top-rated analysts to agree, rather than acting on one call, addresses the single-call problem; see how Gems work.
On average they react around the announcement. A 1996 study found further drift after new buy recommendations averaged +2.4% and was short-lived, so most of the move came early.
Less often than headlines suggest. A 2011 study found only 12% of recommendation changes visibly moved the stock price.
Research found gross gains from trading on rating changes, but they required fast, frequent trading, and after trading costs the returns were not reliably above zero.
An upgrade changes the rating, such as Hold to Buy. A target increase changes the price the analyst expects but can leave the rating unchanged.
Research found changes from star or previously influential analysts were more likely to move prices. Past accuracy still does not guarantee the next call is right.
Exent tracks 4,000+ analysts, keeps only the elite few with proven records, and surfaces the Gems where they agree.
Educational content, not investment advice. Examples are illustrative; past performance does not guarantee future results.